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ClickFix is a deceptive social engineering tactic that tricks users into executing malicious commands disguised as bot verification tests, often through fake CAPTCHA prompts. Attackers manipulate victims into performing actions like pressing keyboard shortcuts, leading to malware installation.
Security professionals can leverage ANY.RUN’s threat intelligence database and network IOCs (Indicators of Compromise) to detect ClickFix domains and mitigate risks effectively.
You Should Know:
1. Extracting ClickFix IOCs from ANY.RUN
To retrieve ClickFix-related IOCs from ANY.RUN:
curl -X GET "https://api.any.run/v1/threat-intelligence/search?query=ClickFix" -H "Authorization: Bearer YOUR_API_KEY" -o clickfix_iocs.json
2. Converting JSON to CSV
Using `jq` (Linux) or PowerShell (Windows) to convert JSON to CSV:
jq -r '.data[] | [.domain, .ip, .type] | @csv' clickfix_iocs.json > clickfix_iocs.csv
PowerShell Alternative:
Import-Clickfix_iocs.json | ConvertTo-Csv -NoTypeInformation | Out-File -FilePath clickfix_iocs.csv
3. Uploading to GitHub for KQL Ingestion
Push the CSV to GitHub for automated ingestion in Microsoft Defender for Endpoint (MDE) KQL rules:
git add clickfix_iocs.csv git commit -m "Updated ClickFix IOCs" git push origin main
4. KQL Detection Rule for ClickFix Domains
Use this KQL query in Microsoft Sentinel or MDE to detect ClickFix-related activity:
let ClickFixDomains = externaldata(Domain:string) [@"https://raw.githubusercontent.com/your/repo/main/clickfix_iocs.csv"] with (format="csv"); DeviceNetworkEvents | where RemoteUrl in (ClickFixDomains) | project Timestamp, DeviceName, RemoteUrl, ActionType
5. Monitoring & Blocking with Firewall Rules
Block malicious domains using `iptables` (Linux) or Windows Firewall:
iptables -A OUTPUT -d $(cat clickfix_iocs.csv | cut -d',' -f1 | tr -d '"') -j DROP
Windows Firewall Command:
Import-Csv clickfix_iocs.csv | ForEach-Object { New-NetFirewallRule -DisplayName "Block ClickFix Domain: $($<em>.Domain)" -Direction Outbound -Action Block -RemoteAddress $</em>.IP }
What Undercode Say:
ClickFix is a growing threat due to its social engineering effectiveness. Automated IOC ingestion, real-time KQL detection, and proactive firewall blocking are critical. Security teams should:
– Continuously update IOCs from ANY.RUN.
– Automate CSV-to-KQL pipelines.
– Educate users on recognizing fake CAPTCHA scams.
Expected Output:
- Detected ClickFix domains blocked in firewall logs.
- KQL alerts triggered for suspicious domain connections.
- GitHub-synced IOCs ensuring up-to-date protection.
Prediction:
As attackers refine ClickFix tactics, AI-driven behavioral analysis will become essential in distinguishing legitimate CAPTCHAs from malicious prompts. Future defenses may integrate machine learning models to detect anomalous verification patterns.
Relevant URLs:
IT/Security Reporter URL:
Reported By: 0x534c Cybersecurity – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
